The absolute structures of new 1 beta-hydroxysacculatane-type diterpenoids with piscicidal activity from the liverwort Pellia endiviifolia.

Eight new sacculatane-type diterpenoids, named 12-deoxy-l beta, 11 alpha-dihydroxysacculatanolide (1), 11 alpha-hydroxysacculatanolide (2), pellianolactones A, B (3, 4), 1 beta, 11 alpha-dihydroxysacculatanolide (5), 1 beta-hydroxysacculatal (6), 1 beta-hydroxyisosacculatal (7), and 1 beta-hydroxysacculatanolide (8), have been isolated from the liverwort Pellia endiviifolia.